laws in four states remain, but tougher laws in at least six other states were either shelved or watered down including those in florida, ohio and of course now in pennsylvania. >>> american airlines now says it knows why passenger seats broke loose causing a pair of emergency landings. the airline originally called for eight of its planes to be inspected but later ordered 47 of its aircraft to be checked. american blames the problem on clamps that were supposed to hold the seats in place but were not properly installed. meanwhile, american and its pilots union continued a contentious renegotiation over its labor agreements. both the airline and the union representing its mechanics deny labor issues played any role in the seat problem. >>> here's a look at stories making news today in america. we are going to begin in minnesota where a wheelchair bound suspect suffered a brutal beating while in police custody. the officer pummeled the intoxicated man and pulled him out of his wheelchair after being hit in the face. the department has placed that officer on administrative leave and reques